OPPO K1 Review: Affordable Tech with Premium Features

OPPO K1 (2018) – Detailed English Specifications

The OPPO K1, unveiled in October 2018, marked OPPO’s first mid-range smartphone with an under-display fingerprint scanner, targeting cost-conscious users seeking premium features at an affordable price. It was a pivotal model that made in-display biometrics accessible to the mid-tier market.

1. Core Overview

Category	Details
Launch Date	October 2018 (officially announced on October 19, 2018, in Beijing)
Product Positioning	Mid-range 4G smartphone, the first OPPO K-series model with under-display fingerprint recognition
Original Price (Global)	Approximately USD 235–252 at launch
Software	ColorOS 5.2 based on Android 8.1 (Oreo)
Network	4G LTE (CAT12), dual Nano-SIM (dual standby), no 5G support

2. Key Hardware Specifications

Display

Type: 6.4-inch Super AMOLED waterdrop notch display
Resolution: 2340×1080 pixels (19.5:9 aspect ratio), ~402 ppi
Screen-to-Body Ratio: ~84.5%
Features: Capacitive touchscreen, 16M colors, 10-point multi-touch

Processor & Memory

Chipset: Qualcomm Snapdragon 660 (14nm process)
CPU: Octa-core (4×2.0 GHz Kryo 260 Gold + 4×1.8 GHz Kryo 260 Silver)
GPU: Adreno 512
RAM: 4GB / 6GB LPDDR4X
Storage: 64GB internal (eMMC 5.1), expandable via microSDXC (up to 256GB)

Camera System

Camera	Specifications	Features
Rear	16MP main (f/1.8, PDAF, 1.12μm) + 2MP depth sensor (f/2.4)	LED flash, HDR, panorama, 1080p@30fps video recording
Front	25MP (f/2.0, 0.9μm)	AI beauty mode, portrait mode, 1080p@30fps video

Battery & Charging

Capacity: 3600mAh Li-ion non-removable battery (typical value)
Charging: 10W standard charging (5V/2A), no fast charging support

Design & Body

Dimensions: 158.3×75.5×7.4 mm
Weight: 156g
Colors: Fantasy Blue, Mocha Red, Silver Green, Jet Black
Body Material: Glass front, plastic back & frame, under-display optical fingerprint scanner

Connectivity & Sensors

Connectivity: Wi-Fi 802.11 a/b/g/n/ac (dual-band), Bluetooth 5.0, microUSB 2.0, 3.5mm headphone jack
Sensors: Under-display fingerprint, accelerometer, gyroscope, proximity, ambient light, compass

3. Core Advantages & Limitations

Advantages: Affordable under-display fingerprint, vibrant Super AMOLED screen, solid Snapdragon 660 performance, large 25MP front camera.
Limitations: No fast charging, plastic back, no IP rating, 4G-only, outdated microUSB port.